Questions tagged [raspberry-pi]

The Raspberry Pi is a low cost, credit card sized, ARMv6 instruction set based PC device developed by the Raspberry Pi foundation.

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3 votes
1 answer
240 views

Python script that starts a video recording on a Raspberry Pi using a USB webcam

I’d love some critique, pointers or any improvement to my code. My project was mainly to record a video, through a Flask Application (online), then save it and display it on the Flask Application. ...
5 votes
2 answers
643 views

Stopwatch program written in C, using Pico W

I've a raspberry Pico W and developed a simple stopwatch program in C. I configured GPIO pin 15 as an input and enabled the internal pull-up resistor. If the state is high, I will start the timer and ...
2 votes
1 answer
101 views

Raspberry Pi/PySimpleGUI based resistance test system

Hardware: Raspberry Pi 3B+, Elecrow touchscreen, DFR0660 Barcode Scanner, ADS1115 ADC I would like any bad practices/possible failure points pointed out specifically in the ...
5 votes
2 answers
1k views

A PHP script used on my home server to download YouTube videos

I have a PHP page I used to download YouTube videos, hosted on my Pi 4. The site is only going to be used on my home network (so a dot local address), but it allows me to download videos on my phone ...
4 votes
3 answers
475 views

Loop to print changes in irrigation state to turn on and off a pump when water is low

Python Noob building an automation irrigation system in Python for Raspberry Pi. Python has two functions in the most basic use case: on/off the LED (which will in future be a relay->pump) and ...
47 votes
6 answers
7k views

Raspberry PI controllable car (code for a 6-year old)

I've been trying to show my 6-year old daughter a way to build and create a simple toy car. We've got a 4-motor chassis kit, Raspberry PI and a motozero shield that can operate these 4 motors. We've ...
1 vote
1 answer
107 views

bash loop for checking service and network connection

I want to start omxplayer, check if there is the process is up, check if there is internet connection start with play a streaming, if there is not play a local loop, meanwhile try to check if the ...
6 votes
1 answer
270 views

Python script which sends telegram message if Raspberry Pi's temperature crosses 60 °C

I need to know if there is any way I can optimize my code so that it does not use 0.6% of my total memory - which is approx. 22.4MB. This is a really small script that runs for as long as the ...
8 votes
2 answers
258 views

Car computer in Python / GPS tracking VERSION 2

This is an updated question with new code, taking into account your comments from last time: Car computer in python / GPS tracking I have an old car that I use for long distance driving and have coded ...
16 votes
2 answers
2k views

Car computer in python / GPS tracking

I have an old car that I use for long distance driving and have coded an onboard computer based on a Raspberry Pi 3 and a few other modules. It's my first project in Python and while I've already ...
1 vote
2 answers
166 views

Error handling on temperature sensor

I built an allsky camera with a temperature sensor and a heater. The heater is supposed to turn when the sensor (measure_temp()) return a temperature below 8, which ...
2 votes
1 answer
91 views

d20pfsrd Discord Bot Scraper Abstraction and Deployment

I wrote a discord bot that listens for links to the d20pfsrd rulebook in discord chat, checks if they are feats or magic, and then scrapes the page, formats it, and spits it back into chat as ...
3 votes
3 answers
62 views

Raspberry PI switching from Soft Access Point to WIFI client

I am relatively new to C language and Linux systems I would like some feedback/review. The main function of the code is to read the dhcpcd file looking for the 3 lines and then either adding/removing ...
5 votes
2 answers
181 views

Recognizing a sequence read through OCR software

I am trying to recognize a sentence that I have read through optical character recognition software. This code will eventually run on a Raspberry Pi. I know for certain that it's meant to be one of a ...
2 votes
0 answers
3k views

Snake Game for Raspberry Pi Sense HAT written in Python

Goals learn Python improve problem-solving skills improve my coding style Hardware This code runs on a Raspberry Pi 3 Model B (Raspbian OS) in combination with the Sense HAT. The 8x8 LED-Matrix on ...
14 votes
2 answers
3k views

Sort-of Alexa clone using Python on a Raspberry Pi

It's still a working process. There are still things I would like to add, and if you have any critiques or ideas they would be greatly appreciated! I would like to know if my code is readable. ...
7 votes
1 answer
367 views

Getting prices of crypto coins

I have been working on this Raspberry Pi project for a while. It uses the Poloniex API to get prices of crypto coins and it shows the prices on multiple OLED displays. The displays use different i2c ...
2 votes
0 answers
347 views

Streaming video from PiCamera to Windows using Java and Python

I'm making a robot with Raspberry. My goal is: Code a server on Rasbperry using Python that captures the image from camera and sends data via socket Code a client on PC using Java that reads data ...
16 votes
1 answer
7k views

Streaming H264 video from PiCamera to a JavaFX ImageView

I'm currently working on a robotics application where a video feed is being displayed from a Raspberry Pi 3. I've been working on a way to stream the video directly into JavaFX (the rest of the UI is ...
8 votes
1 answer
408 views

Runner 1-bit game in Python like the offline chrome dino

I made this little game to test if my Nokia 5110 screen can handle games. As in handle many frames per second/game loops. I am using a library made for this screen called Adafruit_Nokia_LCD These ...
7 votes
1 answer
813 views

Motion detection program for snapping of images

I'm doing a motion detection program where it snaps an image when it detects movement and snaps an image of the person's face if in view while this is all recorded and sends it all to Dropbox. It's ...
11 votes
1 answer
116 views

Python RPI button board

My project consists of a Raspberry Pi 2B V1.1 connected to a number of push-buttons via GPIO pins. The goal is to create a panel of buttons, allowing the user to make a selection of one or more items ...
17 votes
4 answers
1k views

Sensor logger for Raspberry Pi in a stratospheric probe

I'm writing a Python Script for a Raspberry Pi to measure different sensors. We are planning to send the Pi with that Script running to the stratosphere, so the power usage for the Pi is limited. I ...
2 votes
1 answer
98 views

Refactoring coordinates for Minecraft Pi buildings written in Python

I'm fairly new to coding and I wrote this script in Python for a house with a roof in Minecraft Pi. I've found different ways to write the coordinates to make the code base shorter, but I'm wondering ...
22 votes
1 answer
586 views

Raspberry PI controllable Christmas Tree

After having the scales, thermometer and a coffeemaker connected to the internet, it is finally time for Christmas Tree to become smarter. Hardware 6ft Christmas Tree An addressable WS2811 LED strip (...
3 votes
0 answers
301 views

OLED display application for Raspberry Pi

Python script to output status information to a small OLED screen connected to a Raspberry Pi. I'm relatively new at writing python so although the app works and outputs correct information it is far ...
7 votes
1 answer
416 views

Python siren control

Below is some code I've put together to contol a siren for a fire service. It works by webscraping a paging feed and looks for set triggers. Is there a better way of doing my code or is this "...
7 votes
2 answers
999 views

A baby monitor using a Raspberry Pi to send push notifications when triggered by noise

I have a Raspberry Pi 3B with a USB microphone. I have used a combination of Bash and Python scripts to detect noise levels above a certain threshold that trigger a notification on my phone. The ...
6 votes
1 answer
110 views

Signal output on Raspberry Pi that acts as input for FPGA

Problem I'm writing a verilog program that does the trapezoidal integration method (where a review is also welcome, wink wink). But turns out you need input for these kind of things, so in the overly ...
7 votes
1 answer
319 views

Raspberry Pi Heating Controller

In "most" (my experience) older UK houses, Central Heating and Hot Water both come a gas boiler. They are controlled by a programmer, to come on at different times, which is effectively just three ...
12 votes
3 answers
958 views

Raspberry-Pi morse-code LED

I am new to programming, python and raspberry-pi, but I am keen to learn more. After doing a few basic tutorials I though it might be best to give it a shot and just come up with a task in which I ...
5 votes
0 answers
916 views

Uploading captured video to Google Cloud Storage

My program intends to capture video streams (in mjpeg) with OpenCV and upload the captured frames into Google Cloud Storage for later processing. I am expecting to capture ~15-20 frames per second and ...
7 votes
2 answers
150 views

Measuring the speed of a river

I already improved my program with the suggestions of @Mast. As requested by him I re-upload the code in English so we can check it out together. But before I'll explain a little bit what this ...
3 votes
1 answer
477 views

AppJar number pad and keyboard

I am currently working on a python program with appJar. This program is made for Raspberry, as I wanted to create a program that is portable. I wanted to insert a virtual keyboard into it, by using ...
2 votes
0 answers
224 views

Golang: Improving communication between workers

Came back to the software side of my night vision security camera project after taking some time to learn about electronics and I found it a bit hard to retrace the logic of my program. I have a ...
3 votes
1 answer
170 views

Indeterminate progress bar with Raspberry Pi

I am writing program for Raspberry Pi that will show indeterminate progress while user waiting. The program will start automatically and will be killed by another shell script. Here is what I have at ...
3 votes
0 answers
710 views

Using arecord through subprocess to record in Raspberry Pi

I am using arecord through subprocess to record in raspberry pi : press joystick button to start recording and press button again to stop recording. I am really a noob in programming. ...
6 votes
3 answers
628 views

Measure distance using echo signal from Ultrasonic sensor

I was not happy with original code for Ultrasonic sensor and decided to write my own implementation. I managed to do this, but it still looks weird. Could you help me to improve it? ...
10 votes
1 answer
2k views

Weather station for a Raspberry Pi

Please tell me how I could have done this better. The code is here on Github. ...
3 votes
1 answer
503 views

One to One network file transfer code C# socket based

I have been developing a piece of software which has a central computer talk to many smaller nodes with a star network configuration. Each smaller node sends a file around 5MB in size once the central ...
2 votes
1 answer
1k views

Pulling time and date from the internet

I'm pulling the time and date from the internet because when the user turns the Raspberry Pi off, it loses its date and time settings and unfortunately Windows 10 IoT is very slow to correct it. I ...
3 votes
0 answers
2k views

Serving images from a Raspberry Pi camera over HTTP

I have a Pi with a camera module that I control with Python. I created a web server with web.py that allows me to make HTTP requests to the PI to retrieve an image. There are two optional parameters ...
4 votes
1 answer
97 views

Webcam frame splitter

I wrote a camera streaming app for pizero. Since the pizero is too weak to do any video encoding I am using it to just capture usb webcam frames (mjpeg format) and forward them over udp to a ...
4 votes
1 answer
2k views

Pygame Slideshow

I have written a basic slideshow program that uses pygame to manage the display screen. It cycles through all pictures files in the directory and sub-directories. There is a user configuration section ...
1 vote
1 answer
3k views

Multithreaded MJPG network stream server

I'm a bit of a neophyte when it comes to C++, and so I'd like some feedback regarding a recent project. The code sits on a Raspberry Pi and streams camera data over TCP on a specified port. The ...
14 votes
4 answers
3k views

Reading a DHT11 to a file

Disclaimer: not a Pythonista, first actual Python programme written right here. I'm reading a DHT11 sensor from GPIO pin 4 on my Raspberry Pi (thanks Thomas Ward for sending the RPi to me), and I ...
4 votes
0 answers
874 views

Script that reads data over usb from Arduino to RaspberryPi, cleans it up and publishes to an MQTT broker

This is a continuation from this question: Reading analog moisture signal from Arduino over USB to RPi3 and publishing via paho MQTT I made the advised changes, and added a bunch of new stuff, I'd ...
3 votes
0 answers
951 views

RC Plane Radio using the Raspberry Pi

This python code is for a homemade RC plane radio using the Raspberry Pi and a USB joystick. It sends values over serial to DSM2/X module for RC planes and other RC vehicles. This Python code is ...
4 votes
1 answer
420 views

Reading analog moisture signal from Arduino over USB to RPi3 and publishing via paho MQTT

This program is meant to read a moisture sensor attached to an Arduino UNO board via USB to a Raspberry Pi3 which broadcasts it over MQTT. I am looking for any constructive criticism. ...
4 votes
2 answers
650 views

Bash script for setting up a LAN to WLAN router

I wrote a bash script for the Raspberry Pi 3 (Raspbian) which has the main task of setting up a LAN to WLAN router. In addition it makes some things nicer for the intended users who have Windows ...